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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

Approximately how many enamel rods will be present in a maxillary molar ?
A 5 million
B 7 million
C 9 million
D 12 million
Correct Answer: 12 million
All are true regarding the enamel spindles except____________?
A Produced by ameloblasts
B Found in the region of cusps
C Surrounded by inter prismatic enamel
D Terminate as rounded process
Correct Answer: Produced by ameloblasts
Interwining of the enamel rods at the cusp timps and the incisal edges of a tooth is called______________?
A Enamel spindles
B Gnarled enamel
C Incremental lies of woven
D Incremental lines of retzius
Correct Answer: Gnarled enamel
Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?
A 1:4
B 1:1
C 1:2
D 2:1
Correct Answer: 1:1
Enamel tufts are_______________?
A Thin tuft like structure extending from enamel surface of dentin enamel junction
B Tuft like structure arising from dentin-enamel junction towards enamel surface
C Odontoblastic processes extending into enamel
D None of the above
Correct Answer: Tuft like structure arising from dentin-enamel junction towards enamel surface
The enamel of the posterior teeth is thickest at____________?
A Cervical third of buccal surface
B Middle third of buccal surface
C Middle third of lingual surface
D Occlusal surface
Correct Answer: Occlusal surface
perikymata are the external surface manifestations of_____________?
A Enamel rods
B Incremental lines of retzius
C Nasmyth’s membrane
D Pellicle
Correct Answer: Incremental lines of retzius
Which of the following statement is false______________?
A Resorption of roots of deciduous incisors and canines begins on their lingual surfaces
B Resorption of roots of deciduous molars begins on their inner surfaces
C Shedding of deciduous teeth is delayed in the absence of their successor teeth
D None of the above
Correct Answer: None of the above
Which of the following is correct_______________?
A Non-keratinized epithelium is characterized by absence of stratum granulosum and stratum corneum, The surface cells are nucleated
B Parakeratinished epithelium is characterized by superficial cells with pyknotic nuclei and absence of stratum granulosum
C In ortho keratinisation the superficial cells lose their nuclei, but stratum granulosum is present
D All of the above
Correct Answer: All of the above
Long connective tissue papillae and keratinized epithelia are a feature of these parts of oral mucosa____________?
A gingiva and alveolar mucosa
B Hard palate and gingiva
C Buccal andalveolar mucosa
D Hard and soft palate
Correct Answer: Hard palate and gingiva
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